NEXCO East Japan's Kanto Branch has released a summary of the development effects of the Daisan Keihin Expressway, which will celebrate its 60th anniversary of full opening on December 19, and the Yokohama Shindo Expressway, which will celebrate its 50th anniversary of full opening on September 25, 2024.
<Progress of railway line openings>

In terms of the effects of the improvements, and in terms of the number of vehicles used and global events, by 2024, the Daisan Keihin Expressway had been used by a cumulative total of approximately 27 billion vehicles, and the Yokohama Shindo Expressway by a cumulative total of approximately 19 billion vehicles.
In terms of contributing to smoother traffic flow, it has helped alleviate congestion on the parallel national highway, reducing the travel time from central Tokyo to Enoshima (Fujisawa City, Kanagawa Prefecture) by approximately 53 minutes.
<Economic ripple effects over 60 years since the opening of the Third Keihin Expressway and Yokohama Shindo>

The economic ripple effect of the opening is estimated at approximately 4.8 trillion yen over 60 years. In terms of contributions to regional development, it is said that changes in surrounding land use contributed to population growth.
Furthermore, as a road supporting tourism in the areas along the line, the number of tourists visiting Fujisawa City has increased by approximately 1.6 times.